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INFLUENCE OF SAND DUMPING DURING PLATFORM EMPLACEMENT ON CB151 WELLSITE AND BOTTOM-SUPPORTED PLATFORM FOUNDATION SETTLEMENT
Author(s): 
Pages: 27-35
Year: Issue:  4
Journal: COASTAL ENGINEERING

Keyword:  坐底式平台就位抛砂基础沉陷CB151井场;
Abstract: 由于埕岛油田近岸区井场地质条件复杂,要求坐底式平台每一次就位作业时,必须进行抛砂平整,从而导致地层土力学性质变化,并对下一次坐底式平台安全就位产生影响.以CB151井场的典型资料为例,介绍了近岸海域井场的一般地形、地貌特征及工程地质条件差异,通过对坐底式平台基础沉降的分析,计算了坐底区、抛砂区、正常(自然)区3种类型海底在外界因素作用下可能发生的沉陷量,总结了该类井场的一般特点,并对今后的坐底式平台就位作业提出了措施与建议.
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